ASL16 gene, a member of AS2/LOB family, is essential for lateral root formation in Arabidopsis
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Lai-Sheng Meng
, He Bizhu
Abstract
ASYMMETRIC LEAVES2-LIKE16 gene of Arabidopsis is a member of the ASYMMETRIC LEAVES2 (AS2)/LATERAL ORGAN BOUNDARIES (LOB) domain gene family. Current reports have indicated that overexpression of ASL16 induces lateral root formation in the absence of ARF7 and ARF19; whereas lateral root formation is severely reduced in the arf 7 and arf 19 double knockout mutants. Antisense mRNA has testified to be a useful tool to inhibit the expression of specific genes in plants; more significantly, it is specific in the sense that only the mRNA level of the desired protein being changed, while other members of the gene family remain unaffected. To further explore ASL16 function in lateral root growth and development, we introduced an antisense-expression construct of the ASL16 gene to Arabidopsis (Col-0); and acquired some 35S:ASL16 Arabidopsis plants. With 11 day after germination (DAG), many lateral roots in wild-type seedlings were well developed, whereas a few lateral roots in these antisense 35S:ASL16 seedlings were produced. However, with 5, 8 and 16 DAG, the lateral roots in these transgenic seedlings were not distinct with those of wild-type plants. A series of data indicate that primary root formation of these antisense 35S:ASL16 plants was not affected; whereas their lateral root formation was severely inhibited.
Acknowledgements
This research was supported by the Youth Fund of the Natural Science Foundation of Jiangsu Province of China (BK20150232), the Program of Natural Science Foundation of the Jiangsu Higher Education Institutions of China (15KJD180004), Grants from Natural Science Foundation by Jiangsu Normal University (15XLR025). This study was also supported by grants from the National Science Foundation of China (31401443, 31370646; 31560164).
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- Abbreviations
- RT-PCR
reverse transcription PCR
- WT
wild type
- M
marker
- DAG
day after germination
©2016 Institute of Botany, Slovak Academy of Sciences
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Artikel in diesem Heft
- Synthesis of multifunctional γ-PGA-based superparamagnetic iron oxide nanoparticles for magnetic resonance imaging and controlled drug release
- Organic solvent stable protease isolation and characterization from organic solvent tolerant strain of Lysinibacillus sphaericus PAP02
- The impact of grazing absence in inland saline vegetation – a case study from Slovakia
- How dose of biochar and biochar with nitrogen can improve the parameters of soil organic matter and soil structure?
- Water repellent effects of manure amended soils on organic matter decomposition, C retention, and respired CO2-C
- Rainfall interception in a disturbed montane spruce (Picea abies) stand in the West Tatra Mountains
- ASL16 gene, a member of AS2/LOB family, is essential for lateral root formation in Arabidopsis
- Meiobenthic Assemblages from the Southwestern Coast of the Black Sea, İğneada (Turkey)
- Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment
- Parasitic mesostigmatid mites (Acari) – common inhabitants of the nest boxes of starlings (Sturnus vulgaris) in a Polish urban habitat
- Mayfly (Insecta: Ephemeroptera) assemblages of a regulated perennial Mediterranean river system in the Western Balkans
- Distribution and ecology of the flightless bush-cricket Poecilimon schmidtii at its northern range margin
- Sexual size monomorphism and body variation in the fat dormouse Glis glis in Slovakia